Heat Pump or Solar Water Heater?


General Heat Pump Questions
Will I have hot water at night?
Heat Pumps deliver hot water day and night. They produce hot water 24/7
Unlike solar systems that only produce hot water during sunny daylight hours.


How much saving can I expect?
With electricity prices escalating, you as a house owner have tried to investigate all possible measures to save power. Your biggest electricity user is your geyser, producing hot water.
You have tried to find out as much as possible about solar heating. So how much does a solar system save you and how would this compare to a heat pump?
Independant comparritive research conducted by members of the University of the Nort West Engineering Faculty based their findings on an average 4 person household. This had the following annual hot water consumption and electricity used to heat the water of:-
 Heat Pump Comparrison - year

They compared a low end medium quality Solar Water Heater (SWH) and a high quality SWH with a Heat Pump and found the following savings for each system as :-

As you can see the Heat Pump out performed the SWH systems with a greater saving in electricity. 
Why? A Solar heating system only saves on your heating in the middle of summer on a nice hot summer’s day. On an overcast day or in the evening, however, there are no savings and the conventional back-up electric heating element heats the water.

Heat Pumps also save more than other kinds of water heating.

Our Enerflow heat pump produces heat 24/7, rain or shine, day or night, absorbing thermal and electro-mechanical energy from its surroundings and has a starting base line of a guaranteed 50% savings up to 80% savings on your water heating bill.


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